Your curl should return 30 orders starting at 30. If you want the next 30, start at
You probably want to enclose the url in quotes so that everything beyond the first
& separator is included in the curl.
Try this out:
/usr/bin/curl -s --user "firstname.lastname@example.org:nnnnnn" --header "Content-Type: application/json" "https://api.ordoro.com/order/?status=new&limit=30&offset=30"
Let us know if you have any other issues or if this doesn't resolve it,